function ShowArea(sender)
{
	document.getElementById("allchannel").style.display = "block";
		var leftpos = 0,toppos = 0;
		var pObject = sender.offsetParent;
		if (pObject)
		{
			leftpos += pObject.offsetLeft;
			toppos += pObject.offsetTop;
		}
		while(pObject=pObject.offsetParent )
		{
			leftpos += pObject.offsetLeft;
			toppos += pObject.offsetTop;
		};

		document.getElementById("allchannel").style.left = (sender.offsetLeft + leftpos - 298) + "px";
		document.getElementById("allchannel").style.top = (sender.offsetTop + toppos + sender.offsetHeight - 2) + "px";
		}
		function HideArea(sender)
		{
			document.getElementById("allchannel").style.display = "none";
		}